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Window condensation

Posted By: RoxyThursday, 11 January 2001, at 4:15 p.m.

I recently replaced the original casement windows in my home with new vinyl windows. They are Low E, double pane insulated windows. The reason I had them replaced was because every winter I had condensation and ice build up on the inside of the window. The only way to get rid of this problem was to put storm windows on the outside and plastic on the inside. I was assured by more than one window company that this problem was caused by old windows, (27 year old windows), and replacing the old with new windows would correct the problem. I did that and I still have the same old problem. It did not help one bit. I was told the humidity in my home was too high. I had it checked and it is on the low side. I was also told that now I have new windows my house is more air tight and windows need air to breathe. The third thing I was told was to keep the shade and blinds open, even at night so the inside air can hit the window. What is the real story here and what could be the cause of my window condensation and ice build up. Thank you.